Glass furnace



.m- 4 su. una

migas@ GLASS FURNCE.

Appcfiioi. filed April 7,

Re it humm that l?, Josicm il. Rumi-z. r. citizen of the Unheil Shiips,vrvsi li-nfg nl'v Toleila in the Conni-y uff Lucius :rml Stute of 5 @himhave invente hrw nml usvlxil hiprovmneni's in Glass Fumar-QS, of whichhe following is n spocificathm.

This iuwninn relaies i0 imprmmiirns in tank fuxmifvs, and morepzirtiifnhiry tu mi 3G improvvf type of fmomutic skimming ih vice 'foruse in Such :1 fui-mea.

En continuons zl'nk 'fiiriiiwvs9 hrmiigh whieh :milieu glass flows fromlho -niilt'ingg and through the refining portion o tho hwk i5 t@ theglass-working machineu i is oi'vii mistomairy to place n rPfriwtoryloiiirr trimver'sc-ly of the tank in the surface ghisa This` Homer willhawesuiiii-ivh hunyiumy tu limit practifally minimi-gvd within thvnmlhii 2li glass hut with iis upper mlgye extending :my siirfzive glaspast this rvrnrhiry ihim.

The Whirl! pnssrs *from mm Sith@ mi the hmziar to the @ihm must flow(huiver hmz/mil hack the Surface glu??? ryhirh im); hun .lir:

fume, :md als@ mim-cri; :i ihmwr ihm: mi' 'tlm im h@ duim-:elimini ofih@ floii'vr musi paws cui, fhroiigh opii'iimfs in ih@ Minh: Sidosm hymama-,i si? siiihihle .iiinuiiiiig minis? Sihi, elii'l;

lm-simili@ t@ ih@ present invention :i pm*- l-itio'fi or :(lfinser issimirod. plum imma-v vmfiiilj/ of ih@ flowing glass; Si; .m 1mi im l0i'inlljif Siihmorgged thiirriin This mmi'ihir i5. gm'm'hid 'with ridraining@ rfiigfhpr @himmel m iis upper frire ima Iwhich. si. hm Sironm,0f they Surfius 'iow muy spil'msr mp1 Strmim side mi the trough, which,whri iii '45: opsluiting position will he .fiil'imzrrgiil siighfh. lyhrhiw the normaal glass levfl. The crmigh er chiihiwl simpa@ si) that hemiriam uw vwhirh #pills into ihi channel will he driiiiml nil' tmvarllCillwr m: hoth Side Walls irl" hf. 50 tamil?A whore it dischargeshrimggh sxiiiiihle paw-:ages into tanks of wz trr misif@ of the.fin-ruwe whruin it is miivererl h) millet. in this; way the. ihim nwmhcrShrves umili 'function uf a' fioatizr hy enforcing zwheeper 55 flow ofih@ glasstzmd it ih@ sume imc met@ 192i. serieu m, 704,615 W is :mzuimimi@ skimming devicu for remov ing thv rxtrvmc upprrsulfzicefg:i'ivhirh sfnrrivs moat mi he impurities. `'ifwlfmnSmm@ timoihia overflow feature i'imls i0 iminain :i cnnsim ghiss level in thellink, :incl the rims which hwmou through tha tank sides prmhhwi :iSupply of millet which is anessmb iizil iiig'rmliiiii: of the' properm'ixt'mze fm' making miniem glass.

h i511. l is zi hhrizmi-:il Section. izilw` ly :ih m'o thrghiss hri'ol.through .i portion nl? tho furnace, showing he iiilprnveil imitor :imiskimming device in place.

Yi". 2 is n fi'imsvers vertical section hroiigh (ha fm-nare' @inclloalr, when Siihstanti-nih' im the musik-'3 of Fig. l.

Fig; 3 is a longitudinal vertical Section lahm suhsh'miiilly mi ihm lim-8 of 2.

Fig; is ai ififrw similar in of ii hindi- !"irfl imm of eiliimiiieln Th@molmi ghisa; 'i flows slowly through he anli 2 in ih iliiootimi nl tlmtiri-uw -I The iii-'rimmed (hun m.' ihmer :im

iii-ight will he Sn :ifljiised by providing sui'- A :iliijv positioned:1mi progmriuionml nir-spam@ 5 i'wreiir hiit the sections willvrio'rimlly @mi in hm't, siihmm'g'vd 0 hc ilriirwrl ihpth, iii iihe'nmlvh Howwvr. the (him is sciihimrul nml hehl in iixe posiifm by hav im;its mail@ G inserted in siifmhle resses 7 iii ih@ Sill@ mills 0 ih@tank. lin this way :ihhmigh thv `rmr mriion of its weight is Siigipmlmlhlx' he hufiyzxnt @fieri ol (he molt- Qis Jhrm in vfhrh fh@ lnrgesportion of it's hull; ifi suhnwrgml. lh@ Hunter hws not rie nr full `wlhsmall rhzmges in glass hvei in im funk., hm hmiizlihfa Suhzizuiiinllyfixed iii pmiimi. :imi partially supported from th@ ih?, walls of thefunk. By having th@ ceniu il piiiimi of ihr lhmor arched slightly in imnp-strrzun dirvrtiim., the flowing pres sur@ of he' glass will hohl ih@Hunter sectici'isin placa.

in umm? portion lha flnei: is: pm

n slight n vided with a longitudinally extending trough or channel 8,one wall 9 of which normally extends above the glass` level, whereas theother Wall 10, on the up-stream side, will normally be submergedslightly below the glass level so that a thin stream of the surfaceglass as at 11 will constantly spill over this wall 10 into the channelS. The channel 8 is shallowcr at the central portion of the loater anddeeper at the ends of the Heater so that the glass which spills into thechannel will fiow toward either side of the tank.

The ends of the channel 8 are in open communication with dischargepassages VI2 leading through the respective side walls ot the tank. Theglass which Hows ont through these paf-:sages 12 discharges intosuitable troughs or tanks 13 positioned outside o' the furnace andpartially filled with Water so that the molten stream will he convertedinto cullet as indicated at 14 in Fig. 2. Burners 15 are positioned toplay upon the molten streams 16 in passages 12 to maintain, the streamsat a proper flowing tem eratnre.

T ie lower portion of the lioater 3 may he given many differentcross-sectional forms than that disclosed in Figs. 1 to 3, a form 'beingindicated at 17' in Fig. 4 which will enforce a deeperv low ot glassheneath the loater and at the same time divert a larger proportion ofthe surface glass into the drainage trough 8.

An installation of this type not only performs the customary functionot' a tloater, in enforcino a lower flow of glass in the tank andholding back the stream surface portion, but also acts as an automaticskimming device ior removing that portion of the surface flow containingthe greatest percentage of dirt and impurities At the same time it willtend to maintain a more constant glass level in the tank due to itsability to withdi'aw varying amounts of glass through the overflowpassages. The molten glass which flows out into the tanks 13 and isconverted into cullet 14 is not wasted since the good portion of thisglass may he used again, cullet being an essential material in themixture which is melted to produce the molten glass.

Claims:

1. The process of skimming the surface glass in a continuous tankfurnace, consisting in obstructing the flow of the upper glass strata,separating the uper surface glass from the main body of owing glass,flowing this glass transversely from the tank, and converting it intoeullet.

2. The process of skimming the surface glass in a continuous tankfurnace, consisting in obstructing the flow of the 'upper glass strata,collecting the surface glass into transverse Hows directed through thesides of'thc tank, and forming cullet from these transverse flows.

3. The process ot skinnning the surface glass in a continuous tankfurnace, consisting in obstructing the iiow ol the upper glass strata,collecting the surface glass into transverse flows directed through thesides ot` the tank, applying heat to the transverse flows to insure afree flow ot' this surface glass. and forming cullet ot' the glass llowsing through the sides of the tank.

4. A refractory fioater for use in a glass tank. comprising a main glassobstructing portion. and a glass collecting trough in the top of thelloatcr, one side wall of the trough being normally slightly below theglass level so that surface glass may flow into the trough.

5. A refractory floater ttor use in a glass tank, comprising a mainglass obstructing portion, and a glass collecting trough in the top ofthe tloater, one side Wall ot' thc trough being normally slightly belowthe glass level so that surface glass may flow into the trough, thebottom ol: the trough sloping toward the two ends of the float.

6. Means for skimming the surfaceglass in a continuous tank furnace,comprising a refractory {loater extending across the tank in the path ofthe surface glass, a collecting channel in the float into which thesurface glass may spill, and an outlet port in the side of the tankthrough which the channel discharges.

7. Means for skimming the surface glass in a continuous tank furnace,comprising a refractory floatercxtending across the 'tank in' the ath ofthe surface glass,'a collecting channe "in vthe float into `which thesurface glass may spill, and outlet ports in the sides ot thetank-through which the channel dischar es. l

8. l cans for skimming the surface glass in a continuous tank furnace,comprising a refractoryllater extending across the tank in the path ofthe surface glass. a collecting channel in the float into which thesurfaceglass may spill, outlet ports in the sides of the tank throughwhich the channel discharges, and kmeans for heating the glass in theoutlet ports. y

Signed at Toledo, in-the county of Lucas, and State ot Ohio, this 5thday of April,

JOSEPH A. RICECE.

